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incubator-nuttx/tools/mkconfig.c

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/****************************************************************************
* tools/mkconfig.c
*
* Copyright (C) 2007-2013 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include "cfgdefine.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define DEFCONFIG ".config"
/****************************************************************************
* Private Functions
****************************************************************************/
static inline char *getfilepath(const char *name)
{
snprintf(line, PATH_MAX, "%s/" DEFCONFIG, name);
line[PATH_MAX] = '\0';
return strdup(line);
}
static void show_usage(const char *progname)
{
fprintf(stderr, "USAGE: %s <abs path to .config>\n", progname);
exit(1);
}
/****************************************************************************
* Public Functions
****************************************************************************/
int main(int argc, char **argv, char **envp)
{
char *filepath;
FILE *stream;
if (argc != 2)
{
fprintf(stderr, "Unexpected number of arguments\n");
show_usage(argv[0]);
}
filepath = getfilepath(argv[1]);
if (!filepath)
{
fprintf(stderr, "getfilepath failed\n");
exit(2);
}
stream = fopen(filepath, "r");
if (!stream)
{
fprintf(stderr, "open %s failed: %s\n", filepath, strerror(errno));
exit(3);
}
printf("/* config.h -- Autogenerated! Do not edit. */\n\n");
printf("#ifndef __INCLUDE_NUTTX_CONFIG_H\n");
printf("#define __INCLUDE_NUTTX_CONFIG_H\n\n");
printf("/* Architecture-specific options *************************/\n\n");
generate_definitions(stream);
printf("\n/* Sanity Checks *****************************************/\n\n");
printf("/* If this is an NXFLAT, external build, then make sure that\n");
printf(" * NXFLAT support is enabled in the base code.\n");
printf(" */\n\n");
printf("#if defined(__NXFLAT__) && !defined(CONFIG_NXFLAT)\n");
printf("# error \"NXFLAT support not enabled in this configuration\"\n");
printf("#endif\n\n");
printf("/* NXFLAT requires PIC support in the TCBs. */\n\n");
printf("#if defined(CONFIG_NXFLAT)\n");
printf("# undef CONFIG_PIC\n");
printf("# define CONFIG_PIC 1\n");
printf("#endif\n\n");
printf("/* Binary format support is disabled if no binary formats are\n");
printf(" * configured (at present, NXFLAT is the only supported binary.\n");
printf(" * format).\n");
printf(" */\n\n");
printf("#if !defined(CONFIG_NXFLAT) && !defined(CONFIG_ELF) && !defined(CONFIG_BUILTIN)\n");
printf("# undef CONFIG_BINFMT_DISABLE\n");
printf("# define CONFIG_BINFMT_DISABLE 1\n");
printf("#endif\n\n");
printf("/* The correct way to disable RR scheduling is to set the\n");
printf(" * timeslice to zero.\n");
printf(" */\n\n");
printf("#ifndef CONFIG_RR_INTERVAL\n");
printf("# define CONFIG_RR_INTERVAL 0\n");
printf("#endif\n\n");
printf("/* The correct way to disable filesystem support is to set the number of\n");
printf(" * file descriptors to zero.\n");
printf(" */\n\n");
printf("#ifndef CONFIG_NFILE_DESCRIPTORS\n");
printf("# define CONFIG_NFILE_DESCRIPTORS 0\n");
printf("#endif\n\n");
printf("/* If no file descriptors are configured, then make certain no streams\n");
printf(" * are configured either.\n");
printf(" */\n\n");
printf("#if CONFIG_NFILE_DESCRIPTORS == 0\n");
printf("# undef CONFIG_NFILE_STREAMS\n");
printf("# define CONFIG_NFILE_STREAMS 0\n");
printf("#endif\n\n");
printf("/* The correct way to disable stream support is to set the number of\n");
printf(" * streamd to zero.\n");
printf(" */\n\n");
printf("#ifndef CONFIG_NFILE_STREAMS\n");
printf("# define CONFIG_NFILE_STREAMS 0\n");
printf("#endif\n\n");
printf("/* If a console is selected, then make sure that there are resources for\n");
printf(" * three file descriptors and, if any streams are selected, also for three\n");
printf(" * file streams.\n");
printf(" *\n");
printf(" * CONFIG_DEV_CONSOLE means that a builtin console device exists at /dev/console\n");
printf(" * and can be opened during boot-up. Other consoles, such as USB consoles, may\n");
printf(" * not exist at boot-upand have to be handled in a different way. Three file\n");
printf(" * descriptors and three file streams are still needed.\n");
printf(" */\n\n");
printf("#if defined(CONFIG_DEV_CONSOLE) || defined(CONFIG_CDCACM_CONSOLE) || \\\n");
printf(" defined(CONFIG_PL2303_CONSOLE)\n");
printf("# if CONFIG_NFILE_DESCRIPTORS < 3\n");
printf("# undef CONFIG_NFILE_DESCRIPTORS\n");
printf("# define CONFIG_NFILE_DESCRIPTORS 3\n");
printf("# endif\n\n");
printf("# if CONFIG_NFILE_STREAMS > 0 && CONFIG_NFILE_STREAMS < 3\n");
printf("# undef CONFIG_NFILE_STREAMS\n");
printf("# define CONFIG_NFILE_STREAMS 3\n");
printf("# endif\n\n");
printf("/* If no console is selected, then disable all builtin console devices */\n\n");
printf("#else\n");
printf("# undef CONFIG_DEV_LOWCONSOLE\n");
printf("# undef CONFIG_RAMLOG_CONSOLE\n");
printf("#endif\n\n");
printf("/* If no file streams are configured, then make certain that buffered I/O\n");
printf(" * support is disabled\n");
printf(" */\n\n");
printf("#if CONFIG_NFILE_STREAMS == 0\n");
printf("# undef CONFIG_STDIO_BUFFER_SIZE\n");
printf("# undef CONFIG_STDIO_LINEBUFFER\n");
printf("# undef CONFIG_STDIO_DISABLE_BUFFERING\n");
printf("# define CONFIG_STDIO_DISABLE_BUFFERING 1\n");
printf("#endif\n\n");
printf("/* If priority inheritance is disabled, then do not allocate any\n");
printf(" * associated resources.\n");
printf(" */\n\n");
printf("#if !defined(CONFIG_PRIORITY_INHERITANCE) || !defined(CONFIG_SEM_PREALLOCHOLDERS)\n");
printf("# undef CONFIG_SEM_PREALLOCHOLDERS\n");
printf("# define CONFIG_SEM_PREALLOCHOLDERS 0\n");
printf("#endif\n\n");
printf("#if !defined(CONFIG_PRIORITY_INHERITANCE) || !defined(CONFIG_SEM_NNESTPRIO)\n");
printf("# undef CONFIG_SEM_NNESTPRIO\n");
printf("# define CONFIG_SEM_NNESTPRIO 0\n");
printf("#endif\n\n");
printf("/* If the end of RAM is not specified then it is assumed to be the beginning\n");
printf(" * of RAM plus the RAM size.\n");
printf(" */\n\n");
printf("#ifndef CONFIG_RAM_END\n");
printf("# define CONFIG_RAM_END (CONFIG_RAM_START+CONFIG_RAM_SIZE)\n");
printf("#endif\n\n");
printf("#ifndef CONFIG_RAM_VEND\n");
printf("# define CONFIG_RAM_VEND (CONFIG_RAM_VSTART+CONFIG_RAM_SIZE)\n");
printf("#endif\n\n");
printf("/* If the end of FLASH is not specified then it is assumed to be the beginning\n");
printf(" * of FLASH plus the FLASH size.\n");
printf(" */\n\n");
printf("#ifndef CONFIG_FLASH_END\n");
printf("# define CONFIG_FLASH_END (CONFIG_FLASH_START+CONFIG_FLASH_SIZE)\n");
printf("#endif\n\n");
printf("/* If the maximum message size is zero, then we assume that message queues\n");
printf(" * support should be disabled\n");
printf(" */\n\n");
printf("#if !defined(CONFIG_MQ_MAXMSGSIZE) || defined(CONFIG_DISABLE_MQUEUE)\n");
printf("# undef CONFIG_MQ_MAXMSGSIZE\n");
printf("# define CONFIG_MQ_MAXMSGSIZE 0\n");
printf("#endif\n\n");
printf("#if CONFIG_MQ_MAXMSGSIZE <= 0 && !defined(CONFIG_DISABLE_MQUEUE)\n");
printf("# define CONFIG_DISABLE_MQUEUE 1\n");
printf("#endif\n\n");
printf("/* The correct way to disable socket support is to set the number of\n");
printf(" * socket descriptors to zero.\n");
printf(" */\n\n");
printf("#ifndef CONFIG_NSOCKET_DESCRIPTORS\n");
printf("# define CONFIG_NSOCKET_DESCRIPTORS 0\n");
printf("#endif\n\n");
printf("/* There can be no network support with no socket descriptors */\n\n");
printf("#if CONFIG_NSOCKET_DESCRIPTORS <= 0\n");
printf("# undef CONFIG_NET\n");
printf("#endif\n\n");
printf("/* Conversely, if there is no network support, there is no need for\n");
printf(" * socket descriptors\n");
printf(" */\n\n");
printf("#ifndef CONFIG_NET\n");
printf("# undef CONFIG_NSOCKET_DESCRIPTORS\n");
printf("# define CONFIG_NSOCKET_DESCRIPTORS 0\n");
printf("#endif\n\n");
printf("#endif /* __INCLUDE_NUTTX_CONFIG_H */\n");
fclose(stream);
/* Exit (without bothering to clean up allocations) */
free(filepath);
return 0;
}
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